Shoe upper



FIG. 1 is a rear perspective view of a shoe upper showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a first side view thereof; and,

FIG. 4 is an opposite side view thereof.

The broken lines showing the remainder of the shoe are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a shoe upper, as shown and described. 